| C | Karbon = C | Carbone | In French = C | Koolstof | In Afrikaans = C | كربون | In Arabic = C | Carbonu | In Asturian = C | Karbon | In Azerbaijani = C | Вуглярод | In Belarusian = C | Въглерод | In Bulgarian = C | কার্বন | In Bengali = C | Carboni | In Catalan = C | Carboniu | In Corsican = C | Uhlík | In Czech = C | Carbon | In Welsh = C | Carbon | In Danish = C | Kohlenstoff | In German = C | Άνθρακας | In Greek = C | Carbon | In English = C | Karbono | In Esperanto = C | Carbono | In Spanish = C | Süsinik | In Estonian = C | Karbono | In Basque = C | کربن | In Persian = C | Hiili | In Finnish = C | Carboni | In Friulian = C | Carbón | In Irish = C | Gualan | In Galician = C | Carbono | In Galician = C | કાર્બન | GU = C | פחמן | In Hebrew = C | कार्बन | In Hindi = C | Ugljik | In Croatian = C | Kabòn | HT = C | Szén | In Hungarian = C | Ածխածին | In Armenian = C | Carbon | In Interlingua = C | Karbon | In Indonesian = C | Karbo | In Ido = C | Kolefni | In Icelandic = C | Carbonio | In Italian = C | 炭素 | In Japanese = C | tabno | JBO = C | ಇಂಗಾಲ | KN = C | 탄소 | In Korean = C | Karbon | In Kurdish = C | Carbonium | In Latin = C | Kuelestoff | In Letzeburgesh = C | Koolstof | LI = C | Carbòni | In Lombard = C | Kaboni | In Lingala = C | Anglis | In Lithuanian = C | Ogleklis | In Latvian = C | Waro | In Māori = C | Јаглерод | In Macedonian = C | കാര്ബണ് | In Malayalam = C | Нүүрстөрөгч | In Mongolian = C | कार्बन | MR = C | Karbon | In Malay = C | Tecolli | En Nahuatl = C | Kohlenstoff | NDS = C | Koolstof | In Dutch = C | Karbon | In Nynorsk = C | Karbon | In Norwegian = C | Karbo | NOV = C | Carbòni | In Occitan = C | Węgiel | In Polish = C | Carbono | In Portuguese = C | K'illimsayaq | In Quechua = C | Carbon | In Romanian = C | Углерод | In Russian = C | Carbòniu | In Sicilian = C | Ugljenik | In Serbo-Croatian = C | Uhlík | In Slovak = C | Ogljik | In Slovenian = C | Karboni | SQ = C | Угљеник | In Serbian = C | Karbon | SU = C | Kol | In Swedish = C | Kaboni | In Swahili = C | கரிமம் | In Tamil = C | Карбон | In Tajik = C | คาร์บอน | In Thai = C | Karbon | In Turkish = C | Вуглець | In Ukrainian = C | Uglerod | In Uzbek = C | Cacbon | In Vietnamese = C | Carboun | VLS = C | Carbone | In Walloon = C | 碳 | WUU = C | קוילנשטאף | In Yiddisch = C | 碳 | In Chinese |
In Tagalog | → Chemistry |
| H | Idroheno = H | Hydrogène | In French = H | Waterstof | In Afrikaans = H | هيدروجين | In Arabic = H | Hidróxenu | In Asturian = H | Hidrogen | In Azerbaijani = H | Wassastoff | BAR = H | Вадарод | In Belarusian = H | Водород | In Bulgarian = H | হাইড্রোজেন | In Bengali = H | Hidrogen | In Breton = H | Vodonik | In Bosnian = H | Hidrogen | In Catalan = H | Idroheno | CEB = H | Idrogenu | In Corsican = H | Vodík | In Czech = H | Водород | In Chuvash = H | Hydrogen | In Welsh = H | Brint | In Danish = H | Wasserstoff | In German = H | Υδρογόνο | In Greek = H | Hydrogen | In English = H | Hidrogeno | In Esperanto = H | Hidrógeno | In Spanish = H | Vesinik | In Estonian = H | Hidrogeno | In Basque = H | هیدروژن | In Persian = H | Vety | In Finnish = H | Hydrogen | In Faroese = H | Idrogjen | In Friulian = H | Hidrigin | In Irish = H | Haidreagain | GD = H | Hidróxeno | In Galician = H | હાઈડ્રોજન | GU = H | מימן | In Hebrew = H | हाइड्रोजन | In Hindi = H | Vodik | In Croatian = H | Idwojèn | HT = H | Hidrogén | In Hungarian = H | Ջրածին | In Armenian = H | Hydrogeno | In Interlingua = H | Hidrogen | In Indonesian = H | Hidrogeno | In Ido = H | Vetni | In Icelandic = H | Idrogeno | In Italian = H | 水素 | In Japanese = H | წყალბადი | In Georgian = H | អ៊ីដ្រូសែន | KM = H | ಜಲಜನಕ | KN = H | 수소 | In Korean = H | Hîdrojen | In Kurdish = H | Hydrogenium | In Latin = H | Waasserstoff | In Letzeburgesh = H | Waterstof | LI = H | Idrògen | In Lombard = H | Idrojɛ́ní | In Lingala = H | Vandenilis | In Lithuanian = H | Ūdeņradis | In Latvian = H | Hauwai | In Māori = H | Водород | In Macedonian = H | ഹൈഡ്രജന് | In Malayalam = H | Устөрөгч | In Mongolian = H | हायड्रोजन | MR = H | Hidrogen | In Malay = H | Āyōcoxqui | En Nahuatl = H | Waterstoff | NDS = H | Waterstof | In Dutch = H | Hydrogen | In Nynorsk = H | Hydrogen | In Norwegian = H | Hidrogene | NOV = H | Idrogèn | In Occitan = H | Hiidrojen | PIH = H | Wodór | In Polish = H | Hidrogénio | In Portuguese = H | Yakuchaq | In Quechua = H | Hidrogen | In Romanian = H | Водород | In Russian = H | हाइड्रोजन | In Sanskrit = H | Idrògginu | In Sicilian = H | Vodik | In Serbo-Croatian = H | Vodík | In Slovak = H | Vodik | In Slovenian = H | Hidrogjeni | SQ = H | Водоник | In Serbian = H | Hidrogén | SU = H | Väte | In Swedish = H | Hidrojeni | In Swahili = H | ஹைட்ரஜன் | In Tamil = H | హైడ్రోజన్ | TE = H | Ҳидроген | In Tajik = H | ไฮโดรเจน | In Thai = H | Hidrojen | In Turkish = H | Водень | In Ukrainian = H | آبگر | UR = H | Vodorod | In Uzbek = H | Hiđrô | In Vietnamese = H | Woaterstof | VLS = H | Idrodjinne | In Walloon = H | 氢 | WUU = H | היידראזשן | In Yiddisch = H | 氢 | In Chinese |
In Tagalog | → Chemistry |
| O | Oksiheno = O | Oxygène | In French = O | Suurstof | In Afrikaans = O | Sauerstoff | ALS = O | أكسجين | In Arabic = O | Oxíxenu | In Asturian = O | Oksigen | In Azerbaijani = O | Sauastoff | BAR = O | Кісларод | In Belarusian = O | Кислород | In Bulgarian = O | অক্সিজেন | In Bengali = O | Oksigen | In Breton = O | Kiseonik | In Bosnian = O | Oxigen | In Catalan = O | Ossigenu | In Corsican = O | Kyslík | In Czech = O | Йӳçлĕк | In Chuvash = O | Ocsigen | In Welsh = O | Ilt | In Danish = O | Sauerstoff | In German = O | Οξυγόνο | In Greek = O | Oxygen | In English = O | Oksigeno | In Esperanto = O | Oxígeno | In Spanish = O | Hapnik | In Estonian = O | Oxigeno | In Basque = O | اکسیژن | In Persian = O | Happi | In Finnish = O | Ossigjen | In Friulian = O | Soerstof | In Frisian = O | Ocsaigin | In Irish = O | Àile-beatha | GD = O | Osíxeno | In Galician = O | ઑક્સીજન | GU = O | Ocsygien | GV = O | חמצן | In Hebrew = O | आक्सीजन | In Hindi = O | Kisik | In Croatian = O | Kislik | HSB = O | Oksijèn | HT = O | Oxigén | In Hungarian = O | Թթվածին | In Armenian = O | Oxygeno | In Interlingua = O | Oksigen | In Indonesian = O | Oxo | In Ido = O | Súrefni | In Icelandic = O | Ossigeno | In Italian = O | 酸素 | In Japanese = O | kijno | JBO = O | Oksigen | JV = O | ჟანგბადი | In Georgian = O | ಆಮ್ಲಜನಕ | KN = O | 산소 | In Korean = O | Sauerstoff | KSH = O | Oksîjen | In Kurdish = O | Oxygenium | In Latin = O | Sauerstoff | In Letzeburgesh = O | Zuurstof | LI = O | Oksijɛ́ní | In Lingala = O | Deguonis | In Lithuanian = O | Skābeklis | In Latvian = O | Hāora | In Māori = O | Кислород | In Macedonian = O | ഓക്സിജന് | In Malayalam = O | Хүчилтөрөгч | In Mongolian = O | ऑक्सिजन | MR = O | Oksigen | In Malay = O | Ehēcayoh | En Nahuatl = O | Suerstoff | NDS = O | अक्सिजन | NEW = O | Zuurstof | In Dutch = O | Oksygen | In Nynorsk = O | Oksygen | In Norwegian = O | Oxygen | OM = O | Oxygen | PAM = O | Tlen | In Polish = O | Oxigénio | In Portuguese = O | Muksichaq | In Quechua = O | Oxigen | In Romanian = O | Кислород | In Russian = O | Ossìgginu | In Sicilian = O | Kiseonik | In Serbo-Croatian = O | ඔක්සිජන් | SI = O | Kyslík | In Slovak = O | Kisik | In Slovenian = O | Oksigjeni | SQ = O | Кисеоник | In Serbian = O | Oksigén | SU = O | Syre | In Swedish = O | Oksijeni | In Swahili = O | ஆக்ஸிஜன் | In Tamil = O | ఆక్సిజన్ | TE = O | Оксиген | In Tajik = O | ออกซิเจน | In Thai = O | Oksijen | In Turkish = O | Кисень | In Ukrainian = O | Kislorod | In Uzbek = O | Ôxy | In Vietnamese = O | זויערשטאף | In Yiddisch = O | 氧 | In Chinese |
In Tagalog | → Chemistry |
| U | Uranyo = U | Uranio | In Esperanto = U | Uranium | In French = U | Uran | ALS = U | يورانيوم | In French = U | Uran | In Azerbaijani = U | Уран | In Belarusian = U | Уран | In Bulgarian = U | ইউরেনিয়াম | In Bengali = U | Uranijum | In Bosnian = U | Urani | In Catalan = U | Uraniu | In Corsican = U | Uran | In Czech = U | Uran | In Danish = U | Uran | In German = U | Ουράνιο | In Greek = U | Uranium | In English = U | Uranio | In Spanish = U | Uraan | In Estonian = U | Uranio | In Basque = U | اورانیوم | In Persian = U | Uraani | In Finnish = U | Urani | In Friulian = U | Uranio | In Galician = U | אורניום | In Hebrew = U | Uranij | In Croatian = U | Iranyòm | HT = U | Urán | In Hungarian = U | Ուրան (տարր) | In Armenian = U | Uranium | In Indonesian = U | Uranio | In Ido = U | Úran | In Icelandic = U | Uranio | In Italian = U | ウラン | In Japanese = U | jinmrvurani | JBO = U | ಯುರೇನಿಯಮ್ | KN = U | 우라늄 | In Korean = U | Uranium | In Latin = U | Uran | In Letzeburgesh = U | Uranas | In Lithuanian = U | Urāns | In Latvian = U | യുറേനിയം | In Malayalam = U | Ilhuicateōtepoztli | En Nahuatl = U | Uran | NDS = U | Uranium | In Dutch = U | Uran | In Nynorsk = U | Uran | In Norwegian = U | Uran | In Polish = U | Urânio | In Portuguese = U | Uranyu | In Quechua = U | Uraniu | In Romanian = U | Уран | In Russian = U | यूरानियम | In Sanskrit = U | Uraniu | In Sicilian = U | Uranijum | In Serbo-Croatian = U | Urán | In Slovak = U | Uran | In Slovenian = U | Urani | SQ = U | Уранијум | In Serbian = U | Uran | In Swedish = U | Urani | In Swahili = U | யுரேனியம் | In Tamil = U | ยูเรเนียม | In Thai = U | Uranyum | In Turkish = U | Уран | In Ukrainian = U | Urani | In Vietnamese = U | 鈾 | In Chinese |
In Tagalog | → Chemistry |
| UE | Unyong Europeo (http://europa.eu) = EU | European Union | In English = UE | Union Européenne | In French = UE | Unió Europea | In Catalan = UE | Unaniezh Europa | In Breton = EU | Europäische Union | In German = UE | Unia Europejska | In Polish = EU | Europese Unie | In Afrikaans = UE | Unión Europeya | In Aragonese = EU | Evropská Unie | In Czech = ЕС | Европейският съюз | In Bulgarian = EU | Eùropejskô Ùnijô | In Kashubian = ΕΕ | Ευρωπαϊκή Ένωση | In Greek = EU | Europæiske Union | In Danish = UE | Undeb Ewropeaidd | In Welsh = EU | Eŭropa Unio | In Esperanto = JU | Jeropeeske Uny | In Frisian = AE | An tAontas Eorpach | In Irish = EB | Europar Batasuna | In Basque = EU | Europska Unija | In Croatian = UE | Unión Europea | In Spanish = EU | Euroopan unioni | In Finnish = EU | Evropska Unija | In Bosnian = UÛ | Unnion Ûropéenne | In Norman = ES | Europas Sājonga | In Baltic languages = UE | Uniaun Europeia | In Tetum = EU | Európai Unió | In Hungarian = EU | Europeiska unionen | In Swedish = EU | Europana Uniono | In Ido = UE | Uni Eropa | In Indonesian = ESB | Evrópusambandið | In Icelandic |
In Tagalog | → International relations → European Union |